Located 20 miles south of Tucson on the eastern slope of the Sierrita Mountains, the Twin Buttes Mining district dates back to the late 1800s. That’s when four prospectors gophered surface outcrops of ...

Some would love the industry to return. “My grandfather worked in the mines, my uncles worked in the mines,” says Dan Siirila ...

As the Democratic Republic of Congo (DRC) continues to expand copper and cobalt production to meet rising global demand for battery minerals, mining companies are using metallurgical solutions company ...

Magnesium’s story begins with an undefined substance that 14th-century alchemists called “magnesia,” inspired by a classical Greece region, to make the substance sound ancient and mysterious. In the ...

Mesabi Metallics is opening a mine and processing plant on the Iron Range, spurring job opportunities and a chance to join the global transition to low-carbon steel.

During the California gold rush of the mid-1800s, selling supplies and services to miners was a much more reliable way to gain wealth than striking it rich underground. The "picks-and-shovels" trade ...